Molded-In Inserts

SI (Standard Inserts) Molded-In Inserts are installed during the molding process, and the inserts are located in the mold cavity by core pins. The core pins are withdrawn when the mold is opened, leaving the inserts permanently encapsulated in the plastic section with only the threads exposed. Inserts installed during the molding process avoid the need for additional procedures or installation equipment. The molded-in inserts include blind threaded inserts (IBA/IBB/IBC), self-locking blind threaded inserts (ILBC), through threaded inserts ( ITA/ITB/ITC), and knurled inserts (STKA/STKB/STKC). Typical applications include electronics (wearables, smartphones, and hand-held devices), automotive, aerospace and defense, medical, transportation, industrial, and recreational equipment.

Results: 558
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Material Length Outside Diameter Thread Size
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 10,977In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.344 in 0.219 in 6-32
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 9,693In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.25 in 0.25 in 8-32
SI Mounting Fixings INTERNAL-THRD SPACR KBRL BRASS 20,365In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 3 mm 4.74 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 8,635In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.344 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 1,772In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 5.21 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 5,419In Stock
10,000Expected 09/06/2026
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 8.37 mm 4.78 mm M3
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 610In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.125 in 0.25 in 8-32
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 801In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.187 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 1,460In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 7.13 mm 4.78 mm M3
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 200In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.156 in 0.156 in 2-56
SI Mounting Fixings INTERNAL THRD SPACER KNRL S/S 43In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 4 mm 4.74 mm M3
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 750In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 8.73 mm 6.35 mm M4
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 549In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 4 mm 6.35 mm M4
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 393In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.719 in 0.344 in 1/4-20
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 1,090In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.205 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, ALUM 639In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Aluminum 4.77 mm 4.77 mm M3
SI Mounting Fixings INTERNAL-THRD SPACR KNRL BRASS 14In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.25 in 0.375 in 1/4-20
SI Mounting Fixings MOLD-IN INSERT, BLIND, BRASS 1,010In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.205 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, BRASS 842In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.188 in 0.188 in 4-40
SI Mounting Fixings MOLD-IN INSERT, BRASS 247In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.219 in 0.219 in 6-32
SI Mounting Fixings MOLD-IN INSERT, BRASS 505In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 6.35 mm 6.35 mm M4
SI Mounting Fixings INTERNAL THRD SPACER KNRL S/S 1,093In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 3 mm 6.35 mm M4
SI Mounting Fixings MOLD-IN INSERT,BLIND,STAINLESS 113In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.25 in 0.156 in 2-56
SI Mounting Fixings MOLD-IN INSERT, BRASS 848In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Leaded Brass 0.125 in 0.109 in 0-80
SI Mounting Fixings INTERNAL-THRD SPACR KNRL ALUM 819In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Aluminum 3 mm 4.74 mm M3